Knee pad



Sept. 21, 1937. H. J. HOLTJE 2,093,888

KNEE PAD Filed April 12, 1935 g W Z WITNESSES I NVENTOR I w /w w gawwd flozf e ATTORN EY 3 Patented Sept. 21, 1937 UNITED ,STTE

KNEE PAD Howard J. Holtje, Cliffside Park, N. J. Application April 12, 1935, Serial No. 16,096

1 Claim.

This invention relates to knee pads, and more especially to that type of knee pad which is disposed upon the floor and which supports the weight of the user.

An object of the invention is to provide a knee user frombeing soiled and which can be manipulated by the legs of the user in walking upon his knees. In other words, my improved knee pad enables the user to move freely about, forwardly, rearwardly or sidewise, without lifting his knees from the pads, thus enabling him to movefreely about and perform his work without the necessity of rising from time to time to adjust the position of the pad.

A further object is to provide a pad of this character which is composed of soft rubber or My invention also includes the provision of two of such pads fixed upon a flexible, resilient or otherwise movable sheet which gives sufficiently With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, all of which will be more fully hereinafter described and pointed out in the claim.

In the accompanying drawing:-

Figure 1 is a top plan view of my improved knee pad;

Figure 2 is a bottom view of the knee pad with portions broken away to illustrate the construction of the pad;

Figure 3 is a View of Figure 1; and

Figure 4 is a plan View illustrating a modification of my invention.

in section on the line 33 practice it is customary to provide two of these pads, one to support each knee. The pad A is composed of flexible, resilient material, such for example as soft rubber and porous rubber, such as sponge rubber, may be employed in manufacturing the pad.

The upper face of the pad is recessed or dished, forming a pocket I to receive the knee of the user and conform to the shape of the knee. The bottom of the pad is preferably rounded slightly, that is, it is convex to a certain extent, but it is to be understood that when pressure is on the pad the lower portion thereof will be flattened out and rest on the floor.

' It will be noted particularly by reference to Fig. 3 of the drawing that the front and side walls of the knee-receiving pocket or recess are appreciably higher than the wall of the rear portion of the pocket or recess. This not only makes the pocket of the pad comfortable for the user as it conforms in shape to the shape of the knee, but it provides a depression or pocket in which the knee rests so that the knee may be moved about on the floor carrying the pad under the knee without any danger of the pad slipping from under the knee.

The pad A is formed with air chambers 2 therein. These air chambers may, of course, be of any shape and size and arrangement desired, and they are formed by integral divisional webs 3 with recesses or openings 4 of any sort in the Web to connect the air chambers. In constructing the pad it is shaped as above defined, and a bottom thickness 5 of rubber or of the same material as the pad is secured to the same, constituting the lower walls of the air chambers. the under face of this thickness 5 I secure a covering sheet 6 having a smooth lower surface so as to slide freely over the floor without scratching the same.

This sheet 6 may be of leather or any other suitable material, and the edges of the sheet are preferably bent around the edges of. the bottom thickness 5 of the pad a short distance, as indicated at 'I.

In the modification illustrated in Figure 4 of the drawing, I employ two knee pads A secured a flexible sheet 8 which may be of Woven fabric or other suitable material. These pads, as shown in Figure 4, are spaced apart and the sheet 8 is of such a size as to offer added protection to the body and clothing of the user, and this sheet is smooth on its under surface to slide freely on the floor and is flexible or resilient, or both, so that the operator with his knees on the pads may move his knees freely to perform the operation of sliding on his knees.

While I have illustrated what I believe to be the preferred embodiment of my invention, it is to be distinctly understood that various slight changes may be made with regard to the form and arrangement of parts without departing from my invention, and hence I do not limit myself to the precise details set forth but consider myself walls, and interior reinforcing webs connecting at liberty to make such changes and alterations the top and bottom walls, said top wall having as fairly fall within the spirit and scope of the its upper face formed as a knee receiving declaim. pression or pocket having front and side walls 5 What I claim is: and being open at the rear, and a sheet of smooth 5 A knee pad of the character described adapted miaterial covering the bottom of the pad and to snugly fit and support the knee of the user having its edges extending upwardly and over the and permit movement of the pad while supportside edges of the bottom wall. ing the knee, said pad. comprising a hollow body 10 of resilient material having top, bottom and side HOWARD J. HOLTJE. 1o 

